Power bond-drilling machine.



Patented Feb. 13, 1917.

2 SHEETS-SHEET I- J. C. & C. L. PARNELL. POWER BOND DRILLING MACHINE.

APPLICATION FILED DEILZO, I915- 1,215,978..

YNL' NORRIS PEYERS CQ. FNDTDLIYNOU WASHINGTON. D. C. V

J. C. & C. L. PARNELL.

POWER BOND DRILLING MACHINE. APPLICATION FILED DEC- 20. 19I5- 1,215,978. I. I Patented Feb. 13, 1917.

2 SHEETS-SHEET 2.

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JOHN C. PARNELL AND CHARLES LOY PARNELL, OF MONTBELIER, OHIO.

POWER BOND-DRILLING MACHINE.

Specification of Letters Patent.

Patented Feb. V13, 1915?.

Application filed December 20, 1915. Serial No. 67,839.

Y 0 all whom it may concern:

Be it known that we, JOHN C. PARNELL and (Ir-mums LOY PARNELL, citizens of the United States, and residents of Montpelier, in the county of lVilliams and State of Ohio, have invented a new and Improved Power Bond-Drilling Machine, of which the following is a full, clear, and exact tion.

Our invention relates to a machine for drilling holes in railway rails for bonding the rails. More particularly the invention relates to a machine in which a wheel carriage of light construction is adapted to travel on the track rails and from which carriage, a drill frame is suspended being pivotally hung at one end and disposed transversely of the carriage, the opposite end of the drill frame having lift means whereby to raise and lower the same to a lowered position resting on a rail for drilling the latter or to a raised position clear of the rails. On the drill frame a drill head, carrying one or more drills, is slidably mounted, the said drill head being controlled by a feed-lever fulcrumed on the drill frame. The features thus generally outlined arecharacteristic of our improved machine for carrying out the principal ob jects of our invention in providing a drilling machine which may be propelled readily along the track from rail joint to rail joint by a suitable motor on the carriage or by a hand power, and the drills'readily swung to and from the operative position. The machine includes provision for carrying out a further important object in efi'ecting the lubrication of the drills automatically merely by a swinging movement thereof away from the operative position. The manner of mounting the drill frame on the carriage particularly adapts itself to the further purpose of providing a strong and light construction.

descrip- The invention will be more particularly explained in the specific description folequipped with our invention, showing the dull frame and its appurtenances in side Fig. 2 is a side view of thecarriage, showmg the Clllll frame and its appurtenances in end vlew;

Fig. 3 IS a fragmentary view partly in section, showing parts of the drilling means including the drill head slidable on the drill frame;

Fig. 4 is a transverse vertical section on the line 4: lof Fig. 3;

Fig. 5 is a fragmentary longitudinal vertical section of one of the ball bearings e1nployed in our improved machine; and

Fig. 6 is a detail in longitudinal vertical section showing'the manner of connecting the belt-pulley on the drive shaft.

In carrying out our invention in accordance with the illustrated example, a wheelcarriage is provided to travel on the track rails A. Said carriage may consist of a side bar 10 at one side of the carriage and pairs of side bars 11 at the opposite side together with a front cross bar 13 and arear cross bar 14, these being disposed obliquely being connected at one end with the side bar 10 back of the adjacent wheels and ranging therefrom obliquely across and in front of the wheels at the opposite side between the side bars 11 to which the oblique bars are suitably secured. The carriage may be mounted on wheels of the usual form employed in hand cars and the like. The wheels 15 at one side may be mounted on stub axles 16 suitably bolted to the frame bars 10 while the wheels 15 at the opposite side, which, preferably, are of larger diameter, are mounted on short axles 17 supported in blocks 17 between the pairs of frame bars 11.

Our improved carriage frame, which is designated generally by the numeral 18, in Figs; 1 and 3, includes side beams 19 disposed transversely of the carriage at the underside of the same and one end of each beam is pivoted as at 20 on depending hangers 21, or equivalent elements on the carriage so that the said drill frame may swing on its pivots 20 in a vertical plane from the position shown in full lines, in Fig. 1, to that indicated in dotted lines.

Slidable on the drill frame 18 is a drill head designated generally by the numeral 22. In the illustrated construction the drill head 22 is supported and guided as follows: The drill frame includes pairs of side bars 23, the bars of each pair being spaced vertically by drop bars 24 of U-shape. The side bars 23 project at the inner side of the drill frame beyond the bars 24, thereby providing longitudinal grooves in which are received tongues 22 on the sides of the drill head 22, thereby affording guided movement to said drill head. The inner ends of said U-shaped bars 24 are offset as at 25 and suitably bolted to the underside of the beams 19, and, similarly, the outer ends of the said bars are offset as at 26 tooverlie the adjacenttrack rail' A. Suitable braces are provided as at 27 and 28 both below and above the inner ends of the bars 24 and secured thereto and to the beams 19. Similarly, at the outer ends of the said bars 24, braces 29 are secured above the same and offset to correspond with the offset ends 26 and overlie the latter. Also, to further strengthen the U-shaped drop bars, the same are bridged by bars 30 ranging lengthwise therewith, the inner ends of said bars 30 being secured to the beams 19 and the outer ends overlying the braces To the underside of the offset ends 26 of the drop bars 24, an angle iron 31 is secured and presents a depending flange 32, which is sufficiently outward from the adjacent vertical members 33 of the drop bars, to accommodate the head of the adjacent rail A therebetween. The flange is pref erably oblique to the vertical, whereby to form a somewhat flaring opening for the rail head and properly position the drill frame on the rail regardless of variations in the form or width of the rail head.

The drill head 22 is moved to feed the drills B through the medium of a vertical feed lever 34 which is fulcrumed as at 35 between bars 36 that connect arch bars 37 on the drill frame 18. The feed lever 34 is formed at its lower end below the fulcrum bolt 35 with a fork 38, the members of which are connected by bolts or the like with upstanding lugs 40 on the drill head 22, the said bolts 39 passing through slots 41 in the fork members 38. Thus, by rocking the lever 34 on its fulcrum, the drill head 22 will be moved to feed the drills B toward the adjacent rail A or to retract the drills within the vertical plane of the rail head for permitting the raising of the drill frame.

A drive shaft 42 is mounted to turn in upright members 22 on the rail head and has driving connection with the drill shaft or shafts 43, there being gear pinions 44 on the drive shaft 42 meshing with pinions 45 on the said drill shafts. We

preferably provide end thrust bearings for the shafts 42, 43, one of said bearings being shown in section,,Fig. 5, in which 46 indicates the hub of one of the gear wheels 45. The bearing includes a disk 47 lying against the hub and having a flange to receive an opposed disk 48 on a collar 49 which is adjacent to one of the uprights 22". Said disks, 47, 48, have opposed grooves constituting a race for ball bearings 50. The uprights 22 have suitable bearings 51, for the shafts 42, 43. The drive shaft 42, in addition to turning in hearings in the uprights 22 of the drill head 22, turns in hanger bearings 52 on the underside of the beam 19.

A. suitable engine 53 is mounted on the carriage, preferably on the pairs of side bars 11 and in the preferred form of my invention, the driving connection with the shaft 42 is through the medium of a drive belt 54, which runs about a pulley 55 on the said drive shaft and over pulley 56 on the engine shaft 57. By this arrangement the vertical swinging of the drill frame 18 and with it the drive shaft 42, serves to swing the belt pulley 55 so that in raising the drill frame, the said pulley 55 is freed from the driving action of the belt 54 and as the drill frame is lowered the pulley 55 tightens the belt and receives the driving action thereof. Thus, the engine 53 may be permitted to run continuously notwithstanding the raising and lowering of the drill frame and driving connection with the drills will be automatically established merely by the lowering of the drill frame. In order to effect a sliding connection between the drive shaft 42 and the belt pulley in the movement of the drill head 22 which carries with it drive shaft 42, said drive shaft is formed with a slot or key-way 42, receiving a key 58 on the pulley. The numeral 59 indicates the fly-wheel of the engine.

To raise and lower the drill frame 18 and the drills a vertical lever 60 is provided which is formed on a rock-shaft 61 turning in suitable bearings 62 on the carriage and formed with an arm 63 at the end opposite the lever 60 so that said lever is, in effect, a bellcrank. A link 64'conneets at its upper end with the lever arm 63 and at the lower end is secured between lugs 65 on a cross bar 66, which overlies the braces 30. Bolts 66 may be employed to secure together the several elements 26, 29, 30, 31 and 66.

p In order to automatically effect the lubrication of the drills B by the raising of the drill frame 18, we provide oil cups 68 from which the lubricant escapes to wires 67 extending downwardly from the outlets of the oil cups. The lower ends of the said wires 67, which are resilient, are curved laterally into the vertioalpathof movement of the drills B as the latter are swung upwardly with the swinging of the drill frame 18. Thus, the drills in contacting with the wires 67 will take the lubricant therefrom each time the drill frame is raised.

For the proper supply of oil, it is necessary only to use an ordinary sight feed oiler; the oil is fed to the drills by permitting it to run down the curved wires 67 on which it collects in drops at a point where the drills will strike the wires when the drills areraised to the position for moving from joint to joint.

Having thus described our invention we claim as new and desire to secure by Letters Patent:

1. A drilling machine of the class described including a carriage, a drill frame disposed transversely beneath the carriage to range transversely of a railway track, said drill frame being pivotally hung at one end on the carriage near one side of the latter to swing vertically and having its outer free end extending to the opposite side of the carriage to be disposed on the track rail at said opposite side, means on said drill frame to hold and actuate a drill, motor means on the carriage to drive said drill actuating means, and drive connections between the motor means and the drill actuating means.

2. A drilling machine of the class described including a carriage, a drill frame pivotally hung at one end on the carriage to swing vertically to and from the drilling position, a motor on the carriage, drill actuating means on the swinging drill frame, and means to establish and disestablish drive connection between the motor and said drill actuating means by the raising and lowering of the drill frame.

3. A drilling machine of the class described, including a carriage, a drill frame disposed transversely of said carriage beneath the same and pivoted at one end to the carriage near one side of the latter to swing vertically thereon to and from the drilling position, said frame having means rigid therewith at the outer free end thereof, to rest on a rail, drill-holding and actuating means carried by said frame to swing therewith, a motor carriage, drive connections between the motor and the said actuating means and feed means on said frame to advance the drill.

4. A drilling machine of the class described including a carriage, a drill frame disposed transversely beneath the carriage to range transversely of a railway track, said drill frame being pivotally hung at one end on the carriage near one side of the latter to swing vertically, said drill frame being formed at the free end thereof with members rigid therewith to rest upon a rail, a drill head slidable on the said frame, drillactuating means on the frame, and means to drive said actuating means, said drive means including a motor in fixed position on the carriage and drive connection between the motor and said actuating means.

5. A drilling machine of the class described including a carriage; a drill frame, said drill frame comprising beams pivotally hung at one end on the carriage, and U- shaped drop bars, said drop bars having members at their free ends-to receive a rail and rest on the latter, there being members along the sides of the drop bars forming guides for a drill head and braces for the drop bars, said braces including bars bridging the drop bars and connected with the free ends thereof and with the said beams; a drill head slidable between said guide members, and drill holding and actuating means movable to and from the free end of the drill frame, by the movements of the drill head.

6. A drilling machine of the class described, including a carriage, a drill frame pivotally hung at one end on the carriage to swing vertically to and from the drilling position, a motor on the carriage, drill actuating means including a drive shaft on the swinging drill frame, a belt pulley on the said drive shaft, a drive belt running over said pulley, and means to raise and lower the said drill frame, the drive shaft and its belt pulley swinging with the said frame to swing the pulley to and from driving engagement with the drive belt.

7. A drilling machine of the class described, including a carriage, a drill frame pivotally hung on the carriage to swing vertically to and from the drilling position, drill holding and actuating means on the said drill frame, and lubricating means on the carriage in position to be engaged by and to lubricate a drill on the drill frame when said drill frame is raised.

8. A drilling machine of the class described, including a carriage, a drill frame pivotally hung on the carriage to swing vertically to and from the drilling position, drill holding and actuating means on the said drill frame and lubricating means on the carriage in position to be engaged by and to lubricate a drill on the drill frame when said drill frame is raised, the said lubricating means including a container and a resilient wire depending from the container and lying in the path of movement of a drill when raised.

9. A drilling machine of the class described including a carriage, a drill frame mounted on the carriage for up and down movement, a lever on the carriage, connections between the said lever and the free end of the drill frame to raise and lower the same, drill holding and actuating means on the drill frame, and lubricating means on the carriage in position to be engaged by and to lubricate a drill, when the drill frame is raised by the said lever.

10. A drilling machine of the class described including a carriage adapted to travel on track rails, a drill frame suspended beneath said carriage and hinged to swing vertically thereon to and from the drilling position, a motor on the carriage, drill actuating means on the swinging drill frame, and means to establish and dises- Copies of this patent may be obtained for five cents each,

tablish drive connectionsbetween the motor and said drill actuating means by the raising and lowering of the drill frame.

In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

JOHN C. PARNELL. CHARLES LOY PARNELL.

Witnesses:

J. D. HILL, W. P, VVESSLER.

by addressing the Commissioner of Patents,

Washington, D. 0. 

